A Note on the Spectral Area of Toeplitz Operators
Complex Variables
2015-09-01 v2
Abstract
In this note, we show that for hyponormal Toeplitz operators, there exists a lower bound for the area of the spectrum. This extends the known estimate for the spectral area of Toeplitz operators with an analytic symbol.
Cite
@article{arxiv.1503.06731,
title = {A Note on the Spectral Area of Toeplitz Operators},
author = {Cheng Chu and Dmitry Khavinson},
journal= {arXiv preprint arXiv:1503.06731},
year = {2015}
}